Esonstyle Waterproof IPX6 Portable Bluetooth Speaker 5W Drive Built-in Mircophone for iPhone iPod ipad All Bluetooth Devices Ultra-compact High-performance Audio Waterproof IPX6:perfect for outdoor party, camping, poolside, shower, beach etc.Carabiner clip Allows you to easily attach the speaker to a bag or your clothing. Bluetooth 4.0 Technology: Compatible with all Bluetooth-enabled devices. Instantly connect to your smartphone or tablet from up to 10 m away. Lobkin reconnects automatically to the last device used. Incredible Battery Life:Small size with built-in 1000mAh high capacity Li-ion battery industry-leading power management technology. Built-in microphone: Enables use this Wireless Bluetooth Speaker as a speakerphone, so you can enjoy hands-free calling